Improvement in ploughs



E. e.' MATTHEWS.

Plow. Nn. 77,996.. Patented May 19, 1868.

@uitrit tat-25 @anni @Hita nummer; e. MATTHEWS, oF BOSTON, MASSACHUSETTS. ASSIGNQR Toj FRANK F. HoLBRooK, or SAME PLACE;

Letters Patent No. 7 7,996, dated May 19, 1868t IMPROVEMENT 1N PLOUGHS.

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TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Be it known that I, ELBRIDGE G. MATTHEWS, of Boston, in the county of Suffolk, and State of Massachusetts, have invented a new and useful 'Improvement in Ploughs; and I do hereby declare the Same to befully described in the following specification, and represented in the accompanying drawings, of which--l Figurc'l denotes a front side elevation, i

Figure 2 a bottom view, i

lFigure 3 a rear side elevation, ana

Figure 4 a rearend view o f a ploughn provided withV my invention. p

In such drawings, A denotes the plough-standard, or the same and the land-side; B', the bearn; C, the nose or ploughshnre, and D, the mould-board'. E E are parts of the handles. V K

The nose C is bolted to the mould-board. Thelatter, at its interior surface, I provide with a projection,a,

`l1aving a. round hole or mortisc in it to receive a. tenon, b, extended from vthe standardon the inner side of its toe. I also provide the Standard with a bracket or rest, c, to project froxn4 its 'inner side, such bracket Ybeing arranged as represented. A

',Ihe mould-board'is to rest directly on, this bracket, and be held thereto by n. bolt or a screw, d, going through the mould-board, and either intoor through the bracket.

Furthermore, I employ, for supporting the mould-board laterally, and for drawing andholding it closely back on the tenen, a hooked screw-bolt, e, a nut,f, a duplex, conical, or tapering dog or brace, g, and threel eyes or staples, t 7L and 1.', the whole being arranged and formed in manner as exhibited in thedrawings.

Two of thc eyes or staples-project from the inner surface of the mould-board, and the other projects from .the inner side of the standard. The bolt, which hooks into the anterior staple oi eye, ypasses through the middle of the dog orbrace g, and has the nut sc'rewed'on it and against the rear side of-the said brace. The tapering or conical points 7c c, of the brace, pass into the two eyes L 7L. Ori-screwing up the nuts, the said points will be forced closely into the eyes it L, and the whole will connect the mould-board'to the standard, support the mould-,board to great advantage, and, besides, will` admit of a mould-board of different form being easily 'substitutcd when such may bedesirable. d l

1. I claim the combination and arrangement of the' bracketor rest c, the tcnon b, and the Vmortisedprojee tion a, with tlle'mould-board D and standard A of the plough.

2. I also-claim-tho combination and arrangement ofthe duplex-pointed dog or brace g, the hooked bolt e, the nut f, and the" eyes or,l staples 7L t and z', with the bracket, standard, and the mould-board,- connected by means substantially as set forth.

" ELBRIDGE G. MATTHEWS.

Wi tu essos:

F. P. HALE, Jr., J. l. Sn'ow. 

